âShut up. Cops lie. Get a lawyer.â Thatâs the advice for Republican convention protesters if theyâre stopped by police. The succinct and bold summary came from an attorney during a National Lawyerâs Guild âknow your rightsâ training Saturday at the downtown Tampa library. Twenty-three activists, including Roger Butterfield, learned strategies for how to interact with law enforcement during National Special Security Events like the convention.